Chemical Heat Transfer

With increase in temperature, the thermal conductivity of fresh lubricating oil ___________________?

Byadmin March 2, 2019August 24, 2021

With increase in temperature, the thermal conductivity of fresh lubricating oil ___________________?

A. Increases
B. Decreases
C. Remains unchanged
D. May increase or decrease; depends on its composition

Chemical Heat Transfer

To reduce the tube side pressure drop for the same flow rate, the heat exchanger recommended is _______________?

To reduce the tube side pressure drop for the same flow rate, the heat exchanger recommended is _______________?

A. 1-2 heat exchanger
B. 1-1 heat exchanger
C. 3-2 heat exchanger
D. 2-4 heat exchanger

Read More To reduce the tube side pressure drop for the same flow rate, the heat exchanger recommended is _______________?
Chemical Heat Transfer

Shell side pressure drop in a shell and tube heat exchanger does not depend upon the_________________?

Shell side pressure drop in a shell and tube heat exchanger does not depend upon the_________________?

A. Baffle spacing & shell diameter
B. Tube diameter & pitch
C. Viscosity, density & mass velocity of shell side fluid
D. None of these

Read More Shell side pressure drop in a shell and tube heat exchanger does not depend upon the_________________?
Chemical Heat Transfer

For a fluid flowing in an annulus space, the wetted perimeter for heat transfer and pressure drop are__________________?

For a fluid flowing in an annulus space, the wetted perimeter for heat transfer and pressure drop are__________________?

A. Same
B. Different
C. Never different
D. Linearly related

Read More For a fluid flowing in an annulus space, the wetted perimeter for heat transfer and pressure drop are__________________?
Chemical Heat Transfer

The advantage of using a 1 – 2 shell and tube heat exchanger over a 1 – 1 shell and tube heat exchanger is_________________?

The advantage of using a 1 – 2 shell and tube heat exchanger over a 1 – 1 shell and tube heat exchanger is_________________?

A. Lower tube side pressure drop
B. Lower shell side pressure drop
C. Higher tube side heat transfer co-efficient
D. Higher shell side heat transfer co-efficient

Read More The advantage of using a 1 – 2 shell and tube heat exchanger over a 1 – 1 shell and tube heat exchanger is_________________?
Chemical Heat Transfer

_____________ equation relates the thermal conductivity of a solid to its temperature ?

_____________ equation relates the thermal conductivity of a solid to its temperature ?

A. Antoine
B. Kopp’s
C. Lee’s
D. Kistyakowsky

Read More _____________ equation relates the thermal conductivity of a solid to its temperature ?
Chemical Heat Transfer

Fluid motion in the natural convection heat transfer between a solid surface and a fluid in contact with it, results from the_________________?

Fluid motion in the natural convection heat transfer between a solid surface and a fluid in contact with it, results from the_________________?

A. Existence of thermal boundary layer
B. Temperature gradient produced due to density difference
C. Buoyancy of the bubbles produced at active nucleation site
D. None of these

Read More Fluid motion in the natural convection heat transfer between a solid surface and a fluid in contact with it, results from the_________________?

Similar Posts